Description:
Material - Made of 304 stainless steel with wash white surface treatment, the nylon insert hex lock nuts have rust and corrosion resistance properties. This material has good properties, high-temperature resistance, durability, and is not easily deformed, making it suitable for long-term indoor and outdoor use.
Features - There is a nylon insert in the insert locknut, which is closely combined with the bolt thread. The nylon insert locknut can produce a certain elastic deformation after the bolt is tightened, resulting in frictional resistance, which can prevent the bolt from loosening caused by vibration or other factors.
Easy to Use - Nylon insert hex lock nuts are easy to use, insert the bolt into the nut, align the threads, and tighten with a wrench.
Wide Application - Locking nuts are widely used and can be used to repair furniture or household appliances, automobile repair, machinery industry, outdoor facilities, construction, etc.

Specification:
Color: Silver&White
Material: 304 Stainless Steel & Nylon
Surface treatment: wash white
Style: Nylon locking hexagonal nut
Thread Size: #4-40mm
Hexagon Width: 6.37mm/0.25"
Height: 3.15mm/0.12"
Thread inner diameter: 2.8mm/0.11"
Flat Washers Size: 0.125x0.312x0.032mm
Spring Washers Size: 0.112x0.209x0.025mm
Package Included: 10pcs x Nylon Insert Hex Lock Nuts & 10pcs x Flat Washers & 10pcs Spring Washers